King tides, which already caused flooding in parts of South Florida earlier this week, are predicted to peak along the east coast of the region in October.
According to the South Florida Water Management District's Sept. 28 forecast, "tidal water levels" along the east coast of South Florida could remain above the National Weather Service moderate flooding threshold from Sept. 28 through Oct. 4, with "a potential to gradually subside toward the end of the forecast period."
In the Keys, tidal water levels could remain above the NWS minor flooding threshold.
When high tides are predicted to peak in South Florida
According to the South Florida Water Management District, during the periods listed below, "high tides may exceed one or more" of the NWS thresholds, although peaks vary by location:
Along the
east coast:
- Sept. 24-Oct. 15, 2026 (full moon and new moon)
- Oct. 22-Nov. 12, 2026 (full moon* and new moon)
- Nov. 22-29, 2026 (full moon)
- Dec. 22-27, 2026 (full moon)
*annual maximum predicted peak(s): Oct. 27, 2026
In the Florida Keys:
- Sept. 21-Nov. 17, 2026 (September new and full moon, October new and full moon*, November new moon)
- Nov. 19-Dec. 1, 2026 (full moon)
- Dec. 4-13, 2026 (new moon)
- Dec. 21-27, 2026 (full moon)
*annual maximum predicted peak(s): Oct. 28 and 30, 2026
What is a king tide?
A king tide is a "non-scientific term" often used to describe exceptionally high tides, according to NOAA.
Higher-than-normal tides usually occur during new or full moons, as well as when the moon is "at its perigee." Higher tides can also occur during specific seasons around the country.
Safety tips for king tide flooding
According to the City of West Palm Beach, the following safety precautions should be observed during king tide flooding:
- Do not enter or drive through floodwater, as it can contain "unseen hazards," including trash and pollutants.
- If you do come in contact with flood water, clean your skin with soap and hot water.
- Do not park your vehicle in low-lying areas, and those that have "come into contact with floodwater should be checked and cleaned."
Sarah Perkel is a South Florida Connect Reporter for the USA TODAY Network's Florida Connect team. You can get all of Florida’s best content directly in your inbox each weekday day by signing up for the free newsletter, Florida TODAY.
This article originally appeared on Palm Beach Post: When king tides, or high tides, are expected to peak in South Florida
